I have an interview coming up and found out it will be for the company's Paris office. I don't know French and I'm certain they'll ask me about it (though the company itself does business in English). I'd at least like to have a clever phrase under my belt such as "I don't know French, but I can certainly learn!" What's the proper way to say that phrase in French? Merci :)

Je peux apprendre will mean you are ready to learn, it just implies it refers to French. Je peux l'apprendre clarifies it is the French language you talking about, the difference will not be very big. But je peux en apprendre is not grammatical if talking about only one language.
– GregMar 14 '18 at 12:08